Q) What is the purpose of a fuse in an electrical circuit?
A) To interrupt power in case of overload
Fuses play an important role by protecting a circuit from current overload.
Fundamentally a fuse is a short length of wire in a glass envelope that will
melt at or above a specific current level. The basic idea is to design a
circuit so that the fuse will break down before the wires and components are
destroyed or catch fire. You want the fuse to be the weakest link in the